/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-507b705 [2020-09-11 15:17:49,894 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-11 15:17:49,897 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-11 15:17:49,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-11 15:17:49,927 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-11 15:17:49,929 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-11 15:17:49,930 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-11 15:17:49,932 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-11 15:17:49,934 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-11 15:17:49,935 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-11 15:17:49,936 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-11 15:17:49,937 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-11 15:17:49,938 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-11 15:17:49,939 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-11 15:17:49,940 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-11 15:17:49,951 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-11 15:17:49,953 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-11 15:17:49,954 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-11 15:17:49,955 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-11 15:17:49,957 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-11 15:17:49,959 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-11 15:17:49,960 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-11 15:17:49,961 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-11 15:17:49,962 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-11 15:17:49,965 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-11 15:17:49,968 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-11 15:17:49,969 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-11 15:17:49,970 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-11 15:17:49,971 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-11 15:17:49,972 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-11 15:17:49,972 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-11 15:17:49,973 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-11 15:17:49,974 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-11 15:17:49,974 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-11 15:17:49,975 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-11 15:17:49,976 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-11 15:17:49,977 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-11 15:17:50,002 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-11 15:17:50,002 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-11 15:17:50,003 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-11 15:17:50,004 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-11 15:17:50,004 INFO L138 SettingsManager]: * Use SBE=true [2020-09-11 15:17:50,004 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-11 15:17:50,004 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-11 15:17:50,005 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-11 15:17:50,005 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-11 15:17:50,005 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-11 15:17:50,005 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-11 15:17:50,005 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-11 15:17:50,006 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-11 15:17:50,006 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-11 15:17:50,006 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-11 15:17:50,006 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-11 15:17:50,006 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-11 15:17:50,007 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-11 15:17:50,007 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-11 15:17:50,007 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-11 15:17:50,007 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-11 15:17:50,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-11 15:17:50,008 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-11 15:17:50,008 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-11 15:17:50,008 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-11 15:17:50,008 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-11 15:17:50,009 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-11 15:17:50,009 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-11 15:17:50,009 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-11 15:17:50,009 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-11 15:17:50,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-11 15:17:50,474 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-11 15:17:50,479 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-11 15:17:50,481 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-11 15:17:50,481 INFO L275 PluginConnector]: CDTParser initialized [2020-09-11 15:17:50,483 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.oepc.i [2020-09-11 15:17:50,579 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7c7079fea/a5e616afdfa941d4ad204fdcb453a098/FLAGafd482bc7 [2020-09-11 15:17:51,231 INFO L306 CDTParser]: Found 1 translation units. [2020-09-11 15:17:51,232 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe011_tso.oepc.i [2020-09-11 15:17:51,251 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7c7079fea/a5e616afdfa941d4ad204fdcb453a098/FLAGafd482bc7 [2020-09-11 15:17:51,506 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7c7079fea/a5e616afdfa941d4ad204fdcb453a098 [2020-09-11 15:17:51,520 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-11 15:17:51,526 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-11 15:17:51,527 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-11 15:17:51,527 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-11 15:17:51,532 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-11 15:17:51,533 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 03:17:51" (1/1) ... [2020-09-11 15:17:51,537 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69a7e5b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:17:51, skipping insertion in model container [2020-09-11 15:17:51,537 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 03:17:51" (1/1) ... [2020-09-11 15:17:51,546 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-11 15:17:51,596 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-11 15:17:52,158 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 15:17:52,179 INFO L203 MainTranslator]: Completed pre-run [2020-09-11 15:17:52,267 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 15:17:52,354 INFO L208 MainTranslator]: Completed translation [2020-09-11 15:17:52,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:17:52 WrapperNode [2020-09-11 15:17:52,355 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-11 15:17:52,356 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-11 15:17:52,356 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-11 15:17:52,356 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-11 15:17:52,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:17:52" (1/1) ... [2020-09-11 15:17:52,387 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:17:52" (1/1) ... [2020-09-11 15:17:52,416 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-11 15:17:52,416 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-11 15:17:52,417 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-11 15:17:52,417 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-11 15:17:52,429 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:17:52" (1/1) ... [2020-09-11 15:17:52,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:17:52" (1/1) ... [2020-09-11 15:17:52,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:17:52" (1/1) ... [2020-09-11 15:17:52,432 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:17:52" (1/1) ... [2020-09-11 15:17:52,439 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:17:52" (1/1) ... [2020-09-11 15:17:52,442 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:17:52" (1/1) ... [2020-09-11 15:17:52,445 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:17:52" (1/1) ... [2020-09-11 15:17:52,451 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-11 15:17:52,452 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-11 15:17:52,452 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-11 15:17:52,452 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-11 15:17:52,453 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:17:52" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-11 15:17:52,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-11 15:17:52,530 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-11 15:17:52,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-11 15:17:52,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-11 15:17:52,530 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-11 15:17:52,531 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-11 15:17:52,531 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-11 15:17:52,531 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-11 15:17:52,531 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-11 15:17:52,532 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-11 15:17:52,532 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-11 15:17:52,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-11 15:17:52,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-11 15:17:52,542 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-11 15:17:52,929 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-11 15:17:52,930 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-11 15:17:52,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 03:17:52 BoogieIcfgContainer [2020-09-11 15:17:52,935 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-11 15:17:52,937 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-11 15:17:52,937 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-11 15:17:52,941 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-11 15:17:52,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 03:17:51" (1/3) ... [2020-09-11 15:17:52,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65fa0ad3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 03:17:52, skipping insertion in model container [2020-09-11 15:17:52,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:17:52" (2/3) ... [2020-09-11 15:17:52,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65fa0ad3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 03:17:52, skipping insertion in model container [2020-09-11 15:17:52,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 03:17:52" (3/3) ... [2020-09-11 15:17:52,945 INFO L109 eAbstractionObserver]: Analyzing ICFG safe011_tso.oepc.i [2020-09-11 15:17:52,957 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-11 15:17:52,958 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-11 15:17:52,967 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-11 15:17:52,969 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-11 15:17:53,003 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:53,003 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:53,003 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:53,004 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:53,004 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:53,004 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:53,005 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:53,005 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:53,005 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:53,006 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:53,006 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:53,006 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:53,007 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:53,007 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:53,007 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:53,008 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:53,008 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:53,008 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:53,013 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:53,013 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:53,014 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:53,014 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:53,027 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:53,027 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:53,028 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:53,028 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:53,037 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:53,037 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:53,038 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:53,038 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:17:53,063 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-11 15:17:53,087 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-11 15:17:53,088 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-11 15:17:53,088 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-11 15:17:53,088 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-11 15:17:53,088 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-11 15:17:53,088 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-11 15:17:53,088 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-11 15:17:53,089 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-11 15:17:53,107 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-09-11 15:17:53,110 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-09-11 15:17:53,160 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-09-11 15:17:53,160 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-11 15:17:53,167 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-11 15:17:53,170 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-09-11 15:17:53,191 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-09-11 15:17:53,191 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-11 15:17:53,192 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-11 15:17:53,194 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-09-11 15:17:53,196 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-11 15:17:55,013 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2287 [2020-09-11 15:17:55,013 INFO L214 etLargeBlockEncoding]: Total number of compositions: 56 [2020-09-11 15:17:55,018 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-09-11 15:17:55,046 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-09-11 15:17:55,049 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-09-11 15:17:55,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-11 15:17:55,058 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:17:55,059 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:17:55,060 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:17:55,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:17:55,067 INFO L82 PathProgramCache]: Analyzing trace with hash 573122436, now seen corresponding path program 1 times [2020-09-11 15:17:55,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:17:55,081 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600864401] [2020-09-11 15:17:55,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:17:55,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:17:55,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:17:55,338 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600864401] [2020-09-11 15:17:55,339 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:17:55,339 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-11 15:17:55,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848473026] [2020-09-11 15:17:55,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 15:17:55,347 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:17:55,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 15:17:55,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 15:17:55,370 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-09-11 15:17:55,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:17:55,427 INFO L93 Difference]: Finished difference Result 290 states and 834 transitions. [2020-09-11 15:17:55,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 15:17:55,429 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-09-11 15:17:55,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:17:55,449 INFO L225 Difference]: With dead ends: 290 [2020-09-11 15:17:55,450 INFO L226 Difference]: Without dead ends: 226 [2020-09-11 15:17:55,452 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 15:17:55,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-09-11 15:17:55,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-09-11 15:17:55,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-09-11 15:17:55,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 626 transitions. [2020-09-11 15:17:55,530 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 626 transitions. Word has length 8 [2020-09-11 15:17:55,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:17:55,531 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 626 transitions. [2020-09-11 15:17:55,531 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 15:17:55,532 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 626 transitions. [2020-09-11 15:17:55,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-11 15:17:55,533 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:17:55,533 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:17:55,534 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-11 15:17:55,534 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:17:55,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:17:55,535 INFO L82 PathProgramCache]: Analyzing trace with hash 572259518, now seen corresponding path program 1 times [2020-09-11 15:17:55,535 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:17:55,535 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641671355] [2020-09-11 15:17:55,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:17:55,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:17:55,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:17:55,669 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641671355] [2020-09-11 15:17:55,669 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:17:55,669 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-11 15:17:55,670 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333507801] [2020-09-11 15:17:55,674 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 15:17:55,674 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:17:55,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 15:17:55,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 15:17:55,675 INFO L87 Difference]: Start difference. First operand 226 states and 626 transitions. Second operand 3 states. [2020-09-11 15:17:55,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:17:55,696 INFO L93 Difference]: Finished difference Result 220 states and 604 transitions. [2020-09-11 15:17:55,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 15:17:55,696 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-09-11 15:17:55,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:17:55,701 INFO L225 Difference]: With dead ends: 220 [2020-09-11 15:17:55,702 INFO L226 Difference]: Without dead ends: 220 [2020-09-11 15:17:55,703 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 15:17:55,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-09-11 15:17:55,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2020-09-11 15:17:55,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-09-11 15:17:55,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 604 transitions. [2020-09-11 15:17:55,737 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 604 transitions. Word has length 9 [2020-09-11 15:17:55,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:17:55,740 INFO L479 AbstractCegarLoop]: Abstraction has 220 states and 604 transitions. [2020-09-11 15:17:55,740 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 15:17:55,740 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 604 transitions. [2020-09-11 15:17:55,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-11 15:17:55,743 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:17:55,743 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:17:55,743 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-11 15:17:55,743 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:17:55,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:17:55,745 INFO L82 PathProgramCache]: Analyzing trace with hash 1053246614, now seen corresponding path program 1 times [2020-09-11 15:17:55,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:17:55,746 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262882269] [2020-09-11 15:17:55,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:17:55,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:17:55,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:17:55,872 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262882269] [2020-09-11 15:17:55,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:17:55,873 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 15:17:55,874 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588883720] [2020-09-11 15:17:55,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 15:17:55,874 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:17:55,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 15:17:55,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 15:17:55,875 INFO L87 Difference]: Start difference. First operand 220 states and 604 transitions. Second operand 3 states. [2020-09-11 15:17:55,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:17:55,893 INFO L93 Difference]: Finished difference Result 296 states and 766 transitions. [2020-09-11 15:17:55,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 15:17:55,894 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-09-11 15:17:55,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:17:55,896 INFO L225 Difference]: With dead ends: 296 [2020-09-11 15:17:55,896 INFO L226 Difference]: Without dead ends: 236 [2020-09-11 15:17:55,897 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 15:17:55,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-09-11 15:17:55,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 212. [2020-09-11 15:17:55,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-09-11 15:17:55,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 548 transitions. [2020-09-11 15:17:55,911 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 548 transitions. Word has length 10 [2020-09-11 15:17:55,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:17:55,912 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 548 transitions. [2020-09-11 15:17:55,912 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 15:17:55,912 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 548 transitions. [2020-09-11 15:17:55,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-11 15:17:55,913 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:17:55,913 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:17:55,914 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-11 15:17:55,914 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:17:55,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:17:55,914 INFO L82 PathProgramCache]: Analyzing trace with hash -1826039448, now seen corresponding path program 1 times [2020-09-11 15:17:55,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:17:55,915 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813725041] [2020-09-11 15:17:55,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:17:55,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:17:55,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:17:55,963 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813725041] [2020-09-11 15:17:55,964 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:17:55,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-11 15:17:55,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637327343] [2020-09-11 15:17:55,965 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 15:17:55,965 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:17:55,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 15:17:55,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 15:17:55,966 INFO L87 Difference]: Start difference. First operand 212 states and 548 transitions. Second operand 3 states. [2020-09-11 15:17:55,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:17:55,978 INFO L93 Difference]: Finished difference Result 203 states and 518 transitions. [2020-09-11 15:17:55,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 15:17:55,979 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-09-11 15:17:55,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:17:55,981 INFO L225 Difference]: With dead ends: 203 [2020-09-11 15:17:55,981 INFO L226 Difference]: Without dead ends: 203 [2020-09-11 15:17:55,981 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 15:17:55,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-09-11 15:17:55,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2020-09-11 15:17:55,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-09-11 15:17:55,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 518 transitions. [2020-09-11 15:17:55,992 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 518 transitions. Word has length 10 [2020-09-11 15:17:55,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:17:55,992 INFO L479 AbstractCegarLoop]: Abstraction has 203 states and 518 transitions. [2020-09-11 15:17:55,992 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 15:17:55,993 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 518 transitions. [2020-09-11 15:17:55,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-11 15:17:55,994 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:17:55,994 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:17:55,994 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-11 15:17:55,994 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:17:55,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:17:55,995 INFO L82 PathProgramCache]: Analyzing trace with hash -772648785, now seen corresponding path program 1 times [2020-09-11 15:17:55,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:17:55,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241909754] [2020-09-11 15:17:55,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:17:56,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:17:56,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:17:56,058 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241909754] [2020-09-11 15:17:56,058 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:17:56,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 15:17:56,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838476003] [2020-09-11 15:17:56,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 15:17:56,061 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:17:56,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 15:17:56,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 15:17:56,062 INFO L87 Difference]: Start difference. First operand 203 states and 518 transitions. Second operand 4 states. [2020-09-11 15:17:56,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:17:56,090 INFO L93 Difference]: Finished difference Result 240 states and 585 transitions. [2020-09-11 15:17:56,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-11 15:17:56,090 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-09-11 15:17:56,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:17:56,092 INFO L225 Difference]: With dead ends: 240 [2020-09-11 15:17:56,092 INFO L226 Difference]: Without dead ends: 144 [2020-09-11 15:17:56,092 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-11 15:17:56,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-09-11 15:17:56,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2020-09-11 15:17:56,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-09-11 15:17:56,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 331 transitions. [2020-09-11 15:17:56,116 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 331 transitions. Word has length 11 [2020-09-11 15:17:56,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:17:56,116 INFO L479 AbstractCegarLoop]: Abstraction has 144 states and 331 transitions. [2020-09-11 15:17:56,116 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 15:17:56,117 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 331 transitions. [2020-09-11 15:17:56,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-11 15:17:56,118 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:17:56,118 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:17:56,118 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-11 15:17:56,118 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:17:56,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:17:56,119 INFO L82 PathProgramCache]: Analyzing trace with hash 389651423, now seen corresponding path program 1 times [2020-09-11 15:17:56,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:17:56,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844622859] [2020-09-11 15:17:56,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:17:56,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:17:56,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:17:56,253 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844622859] [2020-09-11 15:17:56,253 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:17:56,253 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 15:17:56,253 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423232473] [2020-09-11 15:17:56,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-11 15:17:56,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:17:56,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-11 15:17:56,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-11 15:17:56,255 INFO L87 Difference]: Start difference. First operand 144 states and 331 transitions. Second operand 4 states. [2020-09-11 15:17:56,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:17:56,296 INFO L93 Difference]: Finished difference Result 164 states and 345 transitions. [2020-09-11 15:17:56,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-11 15:17:56,297 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-09-11 15:17:56,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:17:56,298 INFO L225 Difference]: With dead ends: 164 [2020-09-11 15:17:56,298 INFO L226 Difference]: Without dead ends: 124 [2020-09-11 15:17:56,299 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-11 15:17:56,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-09-11 15:17:56,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2020-09-11 15:17:56,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-09-11 15:17:56,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 261 transitions. [2020-09-11 15:17:56,304 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 261 transitions. Word has length 12 [2020-09-11 15:17:56,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:17:56,304 INFO L479 AbstractCegarLoop]: Abstraction has 124 states and 261 transitions. [2020-09-11 15:17:56,304 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-11 15:17:56,305 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 261 transitions. [2020-09-11 15:17:56,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-11 15:17:56,306 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:17:56,306 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:17:56,306 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-11 15:17:56,306 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:17:56,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:17:56,307 INFO L82 PathProgramCache]: Analyzing trace with hash -806373780, now seen corresponding path program 1 times [2020-09-11 15:17:56,307 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:17:56,307 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419906063] [2020-09-11 15:17:56,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:17:56,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:17:56,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:17:56,400 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419906063] [2020-09-11 15:17:56,400 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:17:56,401 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-11 15:17:56,402 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4404581] [2020-09-11 15:17:56,402 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-11 15:17:56,402 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:17:56,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-11 15:17:56,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-11 15:17:56,403 INFO L87 Difference]: Start difference. First operand 124 states and 261 transitions. Second operand 5 states. [2020-09-11 15:17:56,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:17:56,466 INFO L93 Difference]: Finished difference Result 122 states and 237 transitions. [2020-09-11 15:17:56,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-11 15:17:56,467 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-09-11 15:17:56,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:17:56,468 INFO L225 Difference]: With dead ends: 122 [2020-09-11 15:17:56,468 INFO L226 Difference]: Without dead ends: 97 [2020-09-11 15:17:56,469 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-11 15:17:56,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-09-11 15:17:56,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-09-11 15:17:56,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-09-11 15:17:56,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 186 transitions. [2020-09-11 15:17:56,473 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 186 transitions. Word has length 13 [2020-09-11 15:17:56,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:17:56,474 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 186 transitions. [2020-09-11 15:17:56,474 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-11 15:17:56,474 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 186 transitions. [2020-09-11 15:17:56,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-11 15:17:56,475 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:17:56,475 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:17:56,475 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-11 15:17:56,475 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:17:56,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:17:56,476 INFO L82 PathProgramCache]: Analyzing trace with hash -1341104517, now seen corresponding path program 1 times [2020-09-11 15:17:56,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:17:56,476 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875517392] [2020-09-11 15:17:56,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:17:56,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:17:56,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:17:56,515 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875517392] [2020-09-11 15:17:56,515 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:17:56,515 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-11 15:17:56,515 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858596423] [2020-09-11 15:17:56,516 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 15:17:56,516 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:17:56,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 15:17:56,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 15:17:56,517 INFO L87 Difference]: Start difference. First operand 97 states and 186 transitions. Second operand 3 states. [2020-09-11 15:17:56,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:17:56,531 INFO L93 Difference]: Finished difference Result 101 states and 184 transitions. [2020-09-11 15:17:56,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 15:17:56,532 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-09-11 15:17:56,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:17:56,533 INFO L225 Difference]: With dead ends: 101 [2020-09-11 15:17:56,533 INFO L226 Difference]: Without dead ends: 73 [2020-09-11 15:17:56,533 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 15:17:56,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-09-11 15:17:56,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 72. [2020-09-11 15:17:56,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-09-11 15:17:56,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 124 transitions. [2020-09-11 15:17:56,536 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 124 transitions. Word has length 14 [2020-09-11 15:17:56,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:17:56,537 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 124 transitions. [2020-09-11 15:17:56,537 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 15:17:56,537 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 124 transitions. [2020-09-11 15:17:56,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-11 15:17:56,538 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:17:56,538 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:17:56,538 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-11 15:17:56,539 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:17:56,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:17:56,540 INFO L82 PathProgramCache]: Analyzing trace with hash -1362110025, now seen corresponding path program 1 times [2020-09-11 15:17:56,540 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:17:56,540 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034857433] [2020-09-11 15:17:56,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:17:56,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:17:56,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:17:56,610 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034857433] [2020-09-11 15:17:56,610 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:17:56,610 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-11 15:17:56,610 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497406712] [2020-09-11 15:17:56,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-11 15:17:56,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:17:56,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-11 15:17:56,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-11 15:17:56,612 INFO L87 Difference]: Start difference. First operand 72 states and 124 transitions. Second operand 6 states. [2020-09-11 15:17:56,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:17:56,642 INFO L93 Difference]: Finished difference Result 67 states and 118 transitions. [2020-09-11 15:17:56,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-11 15:17:56,642 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-09-11 15:17:56,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:17:56,643 INFO L225 Difference]: With dead ends: 67 [2020-09-11 15:17:56,643 INFO L226 Difference]: Without dead ends: 0 [2020-09-11 15:17:56,643 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-09-11 15:17:56,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-11 15:17:56,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-11 15:17:56,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-11 15:17:56,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-11 15:17:56,644 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-09-11 15:17:56,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:17:56,645 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-11 15:17:56,645 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-11 15:17:56,645 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-11 15:17:56,645 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-11 15:17:56,645 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-11 15:17:56,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.09 03:17:56 BasicIcfg [2020-09-11 15:17:56,650 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-11 15:17:56,654 INFO L168 Benchmark]: Toolchain (without parser) took 5130.84 ms. Allocated memory was 141.0 MB in the beginning and 249.0 MB in the end (delta: 108.0 MB). Free memory was 100.4 MB in the beginning and 158.2 MB in the end (delta: -57.7 MB). Peak memory consumption was 50.3 MB. Max. memory is 7.1 GB. [2020-09-11 15:17:56,655 INFO L168 Benchmark]: CDTParser took 1.58 ms. Allocated memory is still 141.0 MB. Free memory was 119.9 MB in the beginning and 119.5 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-09-11 15:17:56,656 INFO L168 Benchmark]: CACSL2BoogieTranslator took 828.54 ms. Allocated memory was 141.0 MB in the beginning and 201.3 MB in the end (delta: 60.3 MB). Free memory was 99.6 MB in the beginning and 158.4 MB in the end (delta: -58.9 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2020-09-11 15:17:56,656 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.01 ms. Allocated memory is still 201.3 MB. Free memory was 158.4 MB in the beginning and 155.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2020-09-11 15:17:56,657 INFO L168 Benchmark]: Boogie Preprocessor took 34.92 ms. Allocated memory is still 201.3 MB. Free memory was 155.5 MB in the beginning and 154.5 MB in the end (delta: 983.9 kB). Peak memory consumption was 983.9 kB. Max. memory is 7.1 GB. [2020-09-11 15:17:56,658 INFO L168 Benchmark]: RCFGBuilder took 483.77 ms. Allocated memory is still 201.3 MB. Free memory was 154.5 MB in the beginning and 132.2 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2020-09-11 15:17:56,659 INFO L168 Benchmark]: TraceAbstraction took 3713.43 ms. Allocated memory was 201.3 MB in the beginning and 249.0 MB in the end (delta: 47.7 MB). Free memory was 132.2 MB in the beginning and 158.2 MB in the end (delta: -25.9 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-09-11 15:17:56,663 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.58 ms. Allocated memory is still 141.0 MB. Free memory was 119.9 MB in the beginning and 119.5 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 828.54 ms. Allocated memory was 141.0 MB in the beginning and 201.3 MB in the end (delta: 60.3 MB). Free memory was 99.6 MB in the beginning and 158.4 MB in the end (delta: -58.9 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 60.01 ms. Allocated memory is still 201.3 MB. Free memory was 158.4 MB in the beginning and 155.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 34.92 ms. Allocated memory is still 201.3 MB. Free memory was 155.5 MB in the beginning and 154.5 MB in the end (delta: 983.9 kB). Peak memory consumption was 983.9 kB. Max. memory is 7.1 GB. * RCFGBuilder took 483.77 ms. Allocated memory is still 201.3 MB. Free memory was 154.5 MB in the beginning and 132.2 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3713.43 ms. Allocated memory was 201.3 MB in the beginning and 249.0 MB in the end (delta: 47.7 MB). Free memory was 132.2 MB in the beginning and 158.2 MB in the end (delta: -25.9 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.9s, 77 ProgramPointsBefore, 31 ProgramPointsAfterwards, 69 TransitionsBefore, 21 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 657 VarBasedMoverChecksPositive, 32 VarBasedMoverChecksNegative, 15 SemBasedMoverChecksPositive, 33 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 2287 CheckedPairsTotal, 56 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.5s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 167 SDtfs, 120 SDslu, 173 SDs, 0 SdLazy, 83 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 25 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 102 NumberOfCodeBlocks, 102 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 93 ConstructedInterpolants, 0 QuantifiedInterpolants, 2893 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...